You can cut off the main trunk, The three branches on the right side look healthy to keep.

Tony

Unless they're from the root stock in which case you likely won't have quality fruit you desire.

We just walked out and checked, and we can cut the main trunk off. Half the tree is blooming, and the other half not.

What is wrong, and how can I prevent it from spreading?

Thanks for your answers!

Suzi

Use copper spray during dormant season before bloom then once the petals fall use Spectracide once and done as directed. Good Luck.

Tony

If the three healthy branches are suckers from the root stock, multi-graft them.

We removed the main trunk just above where the 3 tranches began. Actually, there are 4. The tree looks 100% better! We sealed the wound with some plant sealer. Ugly stuff. Black, but we feel comfortable.

We put the diseased trunk in the fire wood pile. None of it will go into the compost pile.

I wish I knew what that problem is and how to treat those nice healthy branches so it doesn't happen to them!

Rain tonight they say. Good news for drought stricken California. It's actually chilly! Well, yu wouldn't think so, but feels cold to me!

How can I prevent this icky sappy condition from happening?

Thanks!

Suzi